The vibration issues some found unworkable in the iPad Air 2 are not a concern with the Mini 4!!!
On the display, I'm not seeing anything bad in comparison to my iPhone 6 with photos. I'll be interested to see what Displaymate and other professional reviews has to say about the screen. Looks great in comparison to the Air.
As for battery life I've never been much of a battery watcher so take it fwiw, but it does seem to drain more noticeably than my Air in my admittedly very brief time with it. We'll see after a few days/cycles.
On the display, I'm not seeing anything bad in comparison to my iPhone 6 with photos. I'll be interested to see what Displaymate and other professional reviews has to say about the screen. Looks great in comparison to the Air.
As for battery life I've never been much of a battery watcher so take it fwiw, but it does seem to drain more noticeably than my Air in my admittedly very brief time with it. We'll see after a few days/cycles.